Photoluminescence quenching, structures, and photovoltaic properties of ZnO nanostructures decorated plasma grown single walled carbon nanotubes

Brahim Aissa, Mourad Nedil, Abdelhak Belaidi, Rima Isaifan, Ali Bentouaf, Christian Fauteux, Daniel Therriault

Research output: Contribution to journalArticle

Abstract

Zinc oxide (ZnO) nanostructures were successfully grown directly on single walled carbon nanotubes (SWCNT) template through the CO2 laser-induced chemical liquid deposition (LCLD) process. Photoluminescence (PL) of the deposited ZnO/SWCNT hybrid composites exhibits, at room temperature, a narrow near UV band located at 390 nm with no emission bands in the visible region, indicating a high degree of crystalline quality of the ZnO nanostructures. Moreover, when the relative SWCNT loads are varied within the composites, the PL intensity and the diffused optical reflectance diminish in comparison with those of ZnO alone, owing to the transfer of photo-excited electrons from ZnO to the SWCNT, and the enhancement of the optical absorbance, respectively. Finally, these ZnO/SWCNT hybrid composites are integrated into a heterojunction photovoltaic-based device, using PEDOT:PSS on ITO/glass substrate. The devices show an evident p–n junction behavior in the dark, and a clear I–V curve shift downward when illuminated with an open-circuit voltage of 1.1 V, a short circuit current density of 14.05 μA cm−2, and a fill factor of ∼35%. These results indicate that these composites fabricated via LCLD process could be promising for optoelectronic and energy-harvesting devices. [Figure not available: see fulltext.]

Original languageEnglish
Article number157
JournalJournal of Nanoparticle Research
Volume19
Issue number5
DOIs
Publication statusPublished - 1 May 2017

Fingerprint

Zinc Oxide
Single-walled Carbon Nanotubes
Photoluminescence
Quenching
Single-walled carbon nanotubes (SWCN)
Zinc oxide
Nanostructures
zinc oxides
Plasma
carbon nanotubes
quenching
photoluminescence
Plasmas
Composite
hybrid composites
Composite materials
Liquid
ITO glass
Heterojunction
CO2 Laser

Keywords

  • Carbon nanotubes
  • Nanostructures
  • Photoluminscence
  • Photovoltaic
  • Zinc oxide

ASJC Scopus subject areas

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Photoluminescence quenching, structures, and photovoltaic properties of ZnO nanostructures decorated plasma grown single walled carbon nanotubes. / Aissa, Brahim; Nedil, Mourad; Belaidi, Abdelhak; Isaifan, Rima; Bentouaf, Ali; Fauteux, Christian; Therriault, Daniel.

In: Journal of Nanoparticle Research, Vol. 19, No. 5, 157, 01.05.2017.

Research output: Contribution to journalArticle

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abstract = "Zinc oxide (ZnO) nanostructures were successfully grown directly on single walled carbon nanotubes (SWCNT) template through the CO2 laser-induced chemical liquid deposition (LCLD) process. Photoluminescence (PL) of the deposited ZnO/SWCNT hybrid composites exhibits, at room temperature, a narrow near UV band located at 390 nm with no emission bands in the visible region, indicating a high degree of crystalline quality of the ZnO nanostructures. Moreover, when the relative SWCNT loads are varied within the composites, the PL intensity and the diffused optical reflectance diminish in comparison with those of ZnO alone, owing to the transfer of photo-excited electrons from ZnO to the SWCNT, and the enhancement of the optical absorbance, respectively. Finally, these ZnO/SWCNT hybrid composites are integrated into a heterojunction photovoltaic-based device, using PEDOT:PSS on ITO/glass substrate. The devices show an evident p–n junction behavior in the dark, and a clear I–V curve shift downward when illuminated with an open-circuit voltage of 1.1 V, a short circuit current density of 14.05 μA cm−2, and a fill factor of ∼35{\%}. These results indicate that these composites fabricated via LCLD process could be promising for optoelectronic and energy-harvesting devices. [Figure not available: see fulltext.]",
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AU - Therriault, Daniel

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